Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RL

Ray Listak — 4 Patents

RORohr: 4 patents #85 of 452Top 20%
Chula Vista, CA: #140 of 742 inventorsTop 20%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Ray Listak has been granted 4 US patents while listed as an inventor at Rohr. The first was granted in 2003 and the most recent in March 2013. Ray Listak ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Ray Listak in Chula Vista, CA, US.

Patents per Year

Patents granted per year, 2003 to 2013Bar chart with a peak of 1 patents in 2003.peak 12003: 1 patents20032011: 1 patents20112012: 1 patents20122013: 1 patents2013

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8397865 System and method for noise suppression Alan Richard Douglas 2013-03-19
8235171 System and method for noise suppression Alan Richard Douglas 2012-08-07
8047329 System and method for noise suppression Alan Richard Douglas 2011-11-01
6557389 Machine for corrugating metal foils John D. Beyer, John E. Meaney 2003-05-06